Return back partial distance methods.

2 files changed, 23 insertions, 0 deletions

diff --git a/routing/base/followed_polyline.cpp b/routing/base/followed_polyline.cpp
index 50cabdf9b5..55e899baf3 100644
--- a/routing/base/followed_polyline.cpp
+++ b/routing/base/followed_polyline.cpp
@@ -41,6 +41,26 @@ double FollowedPolyline::GetDistanceM(Iter const & it1, Iter const & it2) const
           MercatorBounds::DistanceOnEarth(m_poly.GetPoint(it2.m_ind), it2.m_pt));
 }
 
+double FollowedPolyline::GetTotalDistanceM() const
+{
+  ASSERT(IsValid(), ());
+  return m_segDistance.back();
+}
+
+double FollowedPolyline::GetDistanceFromBeginM() const
+{
+  ASSERT(IsValid(), ());
+  ASSERT(m_current.IsValid(), ());
+
+  return m_current.m_ind > 0 ? m_segDistance[m_current.m_ind] : 0.0 +
+         MercatorBounds::DistanceOnEarth(m_current.m_pt, m_poly.GetPoint(m_current.m_ind));
+}
+
+double FollowedPolyline::GetDistanceToEndM() const
+{
+  return GetTotalDistanceM() - GetDistanceFromBeginM();
+}
+
 void FollowedPolyline::Swap(FollowedPolyline & rhs)
 {
   m_poly.Swap(rhs.m_poly);
diff --git a/routing/base/followed_polyline.hpp b/routing/base/followed_polyline.hpp
index e255f3df05..02a9d4342f 100644
--- a/routing/base/followed_polyline.hpp
+++ b/routing/base/followed_polyline.hpp
@@ -24,6 +24,9 @@ public:
 
   m2::PolylineD const & GetPolyline() const { return m_poly; }
 
+  double GetTotalDistanceM() const;
+  double GetDistanceFromBeginM() const;
+  double GetDistanceToEndM() const;
   double GetMercatorDistanceFromBegin() const;
 
   /*! \brief Return next navigation point for direction widgets.